Effects of daily intake of yoghurt enriched with bioactive components on chronic stress responses: A double-blinded randomized controlled trial

N. Jaatinen, R. Korpela, T. Poussa, A. Turpeinen, S. Mustonen, Juho Merilahti, K. Peuhkuri

    Research output: Contribution to journalArticleScientificpeer-review

    10 Citations (Scopus)

    Abstract

    Chronic stress has a negative influence on health. The aim was to determine stress reducing effects of yoghurt enriched with bioactive components as compared to normal yoghurt. High-trait anxiety individuals (n = 67) aged 18-63 years participated in a randomized, placebo-controlled, double-blinded intervention with parallel groups. They received either yoghurt enriched with alpha-lactalbumin, casein tripeptides and B vitamins (active) or isoenergetic standard yoghurt (control). To detect changes in psychological and physiological stress, State-Trait Anxiety Inventory, Profile of Mood States, salivary cortisol, inflammatory markers, blood pressure, heart rate variability (HRV) and actigraphy were monitored. We observed higher ratings of vigor (p = 0.047) and reduced feeling of inefficiency (p = 0.048) in the active group. HRV (baseline adjusted mean 49.1 ± 2.3 ms) and recovery index (106.6 ± 33.4) were higher in the active group than in controls (42.5 ± 2.2 ms and 80.0 ± 29.3) (p = 0.046 and p = 0.02, respectively). In conclusion, daily intake of yoghurt enriched with bioactive components may aid in stress coping.
    Original languageEnglish
    Pages (from-to)507-514
    JournalInternational Journal of Food Sciences and Nutrition
    Volume65
    Issue number4
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Yogurt
    yogurt
    stress response
    Randomized Controlled Trials
    anxiety
    heart rate
    Anxiety
    Heart Rate
    actigraphy
    Actigraphy
    Lactalbumin
    Vitamin B Complex
    tripeptides
    Physiological Stress
    vitamin B complex
    lactalbumin
    emotions
    Caseins
    Psychological Stress
    placebos

    Keywords

    • alpha-lactalbumin
    • bioactive peptides
    • B vitamins
    • sleep
    • stress
    • yoghurts

    Cite this

    Jaatinen, N. ; Korpela, R. ; Poussa, T. ; Turpeinen, A. ; Mustonen, S. ; Merilahti, Juho ; Peuhkuri, K. / Effects of daily intake of yoghurt enriched with bioactive components on chronic stress responses : A double-blinded randomized controlled trial. In: International Journal of Food Sciences and Nutrition. 2014 ; Vol. 65, No. 4. pp. 507-514.
    @article{a39e62524835490a939cf8c695aaf499,
    title = "Effects of daily intake of yoghurt enriched with bioactive components on chronic stress responses: A double-blinded randomized controlled trial",
    abstract = "Chronic stress has a negative influence on health. The aim was to determine stress reducing effects of yoghurt enriched with bioactive components as compared to normal yoghurt. High-trait anxiety individuals (n = 67) aged 18-63 years participated in a randomized, placebo-controlled, double-blinded intervention with parallel groups. They received either yoghurt enriched with alpha-lactalbumin, casein tripeptides and B vitamins (active) or isoenergetic standard yoghurt (control). To detect changes in psychological and physiological stress, State-Trait Anxiety Inventory, Profile of Mood States, salivary cortisol, inflammatory markers, blood pressure, heart rate variability (HRV) and actigraphy were monitored. We observed higher ratings of vigor (p = 0.047) and reduced feeling of inefficiency (p = 0.048) in the active group. HRV (baseline adjusted mean 49.1 ± 2.3 ms) and recovery index (106.6 ± 33.4) were higher in the active group than in controls (42.5 ± 2.2 ms and 80.0 ± 29.3) (p = 0.046 and p = 0.02, respectively). In conclusion, daily intake of yoghurt enriched with bioactive components may aid in stress coping.",
    keywords = "alpha-lactalbumin, bioactive peptides, B vitamins, sleep, stress, yoghurts",
    author = "N. Jaatinen and R. Korpela and T. Poussa and A. Turpeinen and S. Mustonen and Juho Merilahti and K. Peuhkuri",
    year = "2014",
    doi = "10.3109/09637486.2014.880669",
    language = "English",
    volume = "65",
    pages = "507--514",
    journal = "International Journal of Food Sciences and Nutrition",
    issn = "0963-7486",
    publisher = "Taylor & Francis",
    number = "4",

    }

    Effects of daily intake of yoghurt enriched with bioactive components on chronic stress responses : A double-blinded randomized controlled trial. / Jaatinen, N.; Korpela, R.; Poussa, T.; Turpeinen, A.; Mustonen, S.; Merilahti, Juho; Peuhkuri, K.

    In: International Journal of Food Sciences and Nutrition, Vol. 65, No. 4, 2014, p. 507-514.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Effects of daily intake of yoghurt enriched with bioactive components on chronic stress responses

    T2 - A double-blinded randomized controlled trial

    AU - Jaatinen, N.

    AU - Korpela, R.

    AU - Poussa, T.

    AU - Turpeinen, A.

    AU - Mustonen, S.

    AU - Merilahti, Juho

    AU - Peuhkuri, K.

    PY - 2014

    Y1 - 2014

    N2 - Chronic stress has a negative influence on health. The aim was to determine stress reducing effects of yoghurt enriched with bioactive components as compared to normal yoghurt. High-trait anxiety individuals (n = 67) aged 18-63 years participated in a randomized, placebo-controlled, double-blinded intervention with parallel groups. They received either yoghurt enriched with alpha-lactalbumin, casein tripeptides and B vitamins (active) or isoenergetic standard yoghurt (control). To detect changes in psychological and physiological stress, State-Trait Anxiety Inventory, Profile of Mood States, salivary cortisol, inflammatory markers, blood pressure, heart rate variability (HRV) and actigraphy were monitored. We observed higher ratings of vigor (p = 0.047) and reduced feeling of inefficiency (p = 0.048) in the active group. HRV (baseline adjusted mean 49.1 ± 2.3 ms) and recovery index (106.6 ± 33.4) were higher in the active group than in controls (42.5 ± 2.2 ms and 80.0 ± 29.3) (p = 0.046 and p = 0.02, respectively). In conclusion, daily intake of yoghurt enriched with bioactive components may aid in stress coping.

    AB - Chronic stress has a negative influence on health. The aim was to determine stress reducing effects of yoghurt enriched with bioactive components as compared to normal yoghurt. High-trait anxiety individuals (n = 67) aged 18-63 years participated in a randomized, placebo-controlled, double-blinded intervention with parallel groups. They received either yoghurt enriched with alpha-lactalbumin, casein tripeptides and B vitamins (active) or isoenergetic standard yoghurt (control). To detect changes in psychological and physiological stress, State-Trait Anxiety Inventory, Profile of Mood States, salivary cortisol, inflammatory markers, blood pressure, heart rate variability (HRV) and actigraphy were monitored. We observed higher ratings of vigor (p = 0.047) and reduced feeling of inefficiency (p = 0.048) in the active group. HRV (baseline adjusted mean 49.1 ± 2.3 ms) and recovery index (106.6 ± 33.4) were higher in the active group than in controls (42.5 ± 2.2 ms and 80.0 ± 29.3) (p = 0.046 and p = 0.02, respectively). In conclusion, daily intake of yoghurt enriched with bioactive components may aid in stress coping.

    KW - alpha-lactalbumin

    KW - bioactive peptides

    KW - B vitamins

    KW - sleep

    KW - stress

    KW - yoghurts

    U2 - 10.3109/09637486.2014.880669

    DO - 10.3109/09637486.2014.880669

    M3 - Article

    VL - 65

    SP - 507

    EP - 514

    JO - International Journal of Food Sciences and Nutrition

    JF - International Journal of Food Sciences and Nutrition

    SN - 0963-7486

    IS - 4

    ER -